Does a Light Bulb's Current and Voltage Follow Ohm's Law?

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Homework Help Overview

The discussion revolves around the application of Ohm's Law to an incandescent light bulb, specifically whether its current and voltage behave according to this law. Participants explore the characteristics of the bulb and the implications of resistance changes due to temperature.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants consider the conditions under which a light bulb might be considered ohmic and question the constancy of resistance in relation to temperature changes. There is also a hint about the influence of thermal motion on electron behavior.

Discussion Status

The discussion is ongoing, with participants raising questions and exploring different aspects of the problem. Some guidance has been offered regarding the nature of resistance in relation to temperature, but no consensus has been reached.

Contextual Notes

There is a mention of posting guidelines that discourage providing direct answers, indicating a focus on encouraging original thought from the original poster.

gr3g1
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Hi guys..

Would a light bulb's current and voltage change according to ohm's law?
Thanks..
 
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What do you think?

For the light bulb (assume it's an incandescent bulb) to be ohmic, what can you say about a specific property of the bulb?
 
Hint: random thermal motion may affect electron current motion...
 
it will work by ohm law, but R is not a constant in such equation, the resistance changes as a function of the temperture.
 
Tuvia, this is clearly a standard textbook question, and our posting guidelines clearly forbids writing out answers to such questions, especially if the OP has not shown any original effort.

Do you think the two posters above you didn't venture an answer because they don't know?
 

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